Hot Mix Asphalt Technology - January/February 2008 - (Page 69)

CONEXPO-CON/AGG PRODUCT REVIEW Sakai America, Inc. SAKAI GW750 Vibratory Pneumatic Tire Roller • Double Axle Pneumatic Tires Vibrate • Great On Compaction of Superpave, Other Contemporary HMA Mixes & Soil • All-Wheel Drive • Articulated Power Steering • 13,000+ Lbs. Centrifugal Force Per Axle • Variable Force Higher Than 55,000 Lb. Static Roller • 77" Rolling Width • Dual Spray System The Sakai GW750 vibratory pneumatic tire roller is perfect for use on breakdown and intermediate passes on Superpave and other perpetual pavement applications. This model - the only one of its kind in the world - develops a dynamic gyratory action that combines the field-proven kneading action of a pneumatic tire roller with the high forces generated by a vibratory roller. It develops the compactive effort, equal to or greater than a 55,000-pound static pneumatic tire roller. To see this product in action visit SAKAI Booth # S-630 in the Silver Lot at ConExpo 2008. Model SC-3800/xTS Touch Screen Silo Control Panel • Controls from 1 to 7 silos Safety alarm on spout or slat • • High silo alarm • Timer for each individual batcher • • • High, mid & low silo indicator lights interlocks to low silo bypass Silo gate interlocked to low air, low silo/ bypass interlock, safety gates Slat & transfer motor amperage indication Model MM-3800/TS Touch Screen Motors Start/ Stop Panel • Complete with master start/stop with separate enable for recycle equipment, safety interlocks and auto/manual interlock of baghouse cleaning system to the asphalt inject • Ammeters, zero speed sensors interfaced • Motor control switchgear can be located in multiple locations Systems Equipment Corporation Terex Roadbuilding Today’s Terex® CR662RM RoadMix material transfer vehicle and paver features a new variablepitch in-hopper auger design that dramatically increases material throughput. The new pitch spacing – transitioning from 10 in (254 mm) in the front to 11 in (279 mm) and then to 12 in (305 mm) in the rear – more aggressively channels material to the rear of the machine for faster truck unloading. This new auger design helps to boost production capabilities, which can exceed 500 tons per hour (454 tonnes per hour). Even with a more aggressive pitch, the constant-diameter augers continue to reblend 100 percent of the material to combat both material and thermal segregation. A new conveyor assembly for the CR662RM features a stationary lift conveyor with ﬂights averaging every other pitch – compared to the previous every third pitch – to reduce hydraulic pressure and more quickly channel material from the rear of the tractor to the swiveling conveyor. New hydraulic pressure gauges for the conveyors, mounted at the operator’s station, help to minimize the chance of plugging the system. Hydraulically operated clean-out doors and reversible conveyor ﬂights help to clear obstructions. Hot Mix Asphalt Technology – JANUARY/FEBRUARY 2008 • 69

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Hot Mix Asphalt Technology - January/February 2008 Contents Chairman's Commentary President's Perspective A Conversation with the New NCAT Director NCAT Test Track: Real-Time Testing for Real-World Results Warm Mix: The Lights are Green Illinois Tollway Tests RAP in Fast Forwarded Research Big Creek Teams with TxDOT to Pave Using Innovative Asphalt Mix Diamond Achievement Commendation Issues a Call for Quality Calendar of Events CONEXPO-CON/AGG Product Review Index of Advertisers Advertisers.com

Hot Mix Asphalt Technology - January/February 2008

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